Fukushima Could Solar Flares Trigger 700 Nuclear Meltdowns?

[Jeem]

This post serves as a follow-up to the thread "Solar flares & CMEs: Serious threat?"

According to the International Journal of Research and Applications, there is a one in eight chance the Earth will experience a massive solar storm within the next decade. [...]

"A 2011 Oak Ridge National Laboratory report warned of a 33 percent likelihood that a solar flare could lead to 'long-term power loss' over a nuclear reactor’s life. With 440 nuclear power plants in 30 countries, and 250 research reactors, there are nearly 700 potential Fukushimas waiting to be unleashed."

http://www.globalpost.com/dispatche...-solar-flare-could-knock-out-the-modern-world

Given the above and what was said in the other thread, my question is as follows:

What preparations, if any, can I make in order to survive 700 potential nuclear meltdowns and avoid coming into contact with harmful radiation?

 

[russ_watters]

How far are you from the nearest nuclear plant?

 

[Astronuc]

This post serves as a follow-up to the thread "Solar flares & CMEs: Serious threat?"


Given the above and what was said in the other thread, my question is as follows:

What preparations, if any, can I make in order to survive 700 potential nuclear meltdowns and avoid coming into contact with harmful radiation?

To have 700 nuclear plants with loss of off-site power implies that all the national grids are down - as would be all the other types of electrical plants. That means most people would not have access to electricity, and probably no water, and probably no food after a few days, no transportation except bicycles and the like, no medical care, little or no money, . . . . The nuclear plants should be the least of one's worries at that point.

The headlines declaring 700 potential nuclear meltdowns are sensational. There is little value in such articles.

Utilities have been preparing for disruptions in grid due to solar storms, since they are responsible for supporting national infrastructures.

2012: Killer Solar Flares Are a Physical Impossibility
http://www.nasa.gov/topics/earth/features/2012-superFlares.html

2012: Beginning of the End or Why the World Won't End?
http://www.nasa.gov/topics/earth/features/2012.html

The CME concern seems to be way overblown.

Nuclear utilites have had to revisit and if necessary revise their plans for dealing with extended SBO (station blackout) following the Fukushima accident.

Both the industry and safety authorities have reiterated their commitments to ensure safety of nuclear plants - especially in conjunction with unplanned and unanticipated natural events. The industry is planning (anticipating) for the unanticipated.

 

[mheslep]

Even if the grid went down from a flare the plants should still have their onsite backup power, which could be extended along as they can receive new tanks of diesel.

 

[Antiphon]

The best preparation is to sell me your house at a steep discount. I'll let you live in it for free until 2014. After that, should you survive the fear-mongering and doomsaying, your rent will go up considerably.

The nice thing about this solar scare business is its absolutely impossible to blame it on man's industrial output. Given that, it won't have much political value to anyone and will soon be forgotten.

 

[nikkkom]

Both the industry and safety authorities have reiterated their commitments to ensure safety of nuclear plants - especially in conjunction with unplanned and unanticipated natural events. The industry is planning (anticipating) for the unanticipated.

This industry has stellar record of reiterating commitments.

When it comes to response to actual unanticipated natural events, as we just witnessed, the record is much less shiny.

I bet your nearby nuclear plant has no adequate radiation detectors. Should unthinkable happen again, the workers will again stroll in the darkness with "uh oh, our dosimeters went offscale high because idiot managers thought that having fields of more than 20 rem/h is never going to happen".

 

[QuantumPion]

This industry has stellar record of reiterating commitments.

When it comes to response to actual unanticipated natural events, as we just witnessed, the record is much less shiny.

I bet your nearby nuclear plant has no adequate radiation detectors. Should unthinkable happen again, the workers will again stroll in the darkness with "uh oh, our dosimeters went offscale high because idiot managers thought that having fields of more than 20 rem/h is never going to happen".

Utter nonsense. All plant workers entering the RCA are issued programmable digital alarming dosimetry. Stationary rad monitors are located at all steam transfer points to monitor for radiation release and personell safety.

As for track record of unanticipated events, the nuclear industry has quite a good track record, considering the number of people who have or will die of radiation from commercial reactors in the history of commercial nuclear power is zero (excluding soviet run ones, which were known for disregarding worker and public safety to save cost to the government).

 

[clancy688]

As for track record of unanticipated events, the nuclear industry has quite a good track record, considering the number of people who have or will die of radiation from commercial reactors in the history of commercial nuclear power is zero (excluding soviet run ones, which were known for disregarding worker and public safety to save cost to the government).

Don't want to start this (again), but there's some nonsense I just can't ignore: And tens of thousands of people who have lost their homes due to the remarkably "good track record" of nuclear plants don't count?

 

[Ryan_m_b]

Don't want to start this (again), but there's some nonsense I just can't ignore: And tens of thousands of people who have lost their homes due to the remarkably "good track record" of nuclear plants don't count?

Do you have a reference to support this?

 

[Astronuc]

This industry has stellar record of reiterating commitments.

When it comes to response to actual unanticipated natural events, as we just witnessed, the record is much less shiny.

Fukushima experienced an extraordinary event that destroyed many towns and villages outside of the plant. In fact, the entire country was unprepared for that event - not just the nuclear industry. On the other hand, TEPCO should have been prepared.

North Anna experienced earthquake that shut it down. They responded according to plan, and the plant was safely shutdown. Fort Calhoun responded to a severe flood. The plant was already shutdown for a refueling outage. They dealt with the flooding and maintained power at the site. In 2011, the Surry plant had a tornado take out the swithyard. Again - safe shutdown.
http://www.virginiabusiness.com/index.php/news/article/tornado-cuts-power-to-surry-nuclear-power-plant/

I bet your nearby nuclear plant has no adequate radiation detectors. Should unthinkable happen again, the workers will again stroll in the darkness with "uh oh, our dosimeters went offscale high because idiot managers thought that having fields of more than 20 rem/h is never going to happen".

As far as I know, they do have appropriate dosimeters and radiation detectors. The local NPP is a twin unity PWR station.

 

[clancy688]

Do you have a reference to support this?

Are you serious? How many people do you think have been displaced because of Fukushima? One hint: The number's close to six digits.

 

[Ryan_m_b]

Are you serious? How many people do you think have been displaced because of Fukushima? One hint: The number's close to six digits.

Yes I'm serious, I was wondering if anyone had done a proper study. With regards to Fukushima are you serious? You realize there was an earthquake and tsunami right? Unless you have a reference for how many had to move because of the reactor rather than the tsunami. That I would be interested in.

 

[clancy688]

I think it's actually the other way around. There are no major port cities in the exclusion zone, the next nearest port city which was hit hard by the tsunami is Minamisoma in the north, just outside the zone.

As for the numbers - the IRSN report from May 2011 states that the total population inside the 20km exclusion zone was around 85'000. Since the zone is entirely off-limits, those 85'000 is a near-certain number. Moreover, since the zone is a half sphere, and since the plant itself is covering a good chunk of the coast, most people lived not at the coast and therefore not at places where the tsunami could've done damage. Furthermore, the major population centers inside the zone (Futaba, Tomioka, Okuma, with at least 35'000 people) escaped, according to google Earth images, nearly unscarred since those towns are far away from the coast.
Yes, there's been tsunami damage. But if you look at satellite images of the exclusion zone, you'll realize that only a very small part of all houses in that area were affected.
The newest number I'd heard was 90'000 displaced, which seems like a good fit overall. The 85'000 of the zone plus several thousand residents of Namie.

Basically: Use google Earth to look at the towns and houses inside the exclusion zone. Compare the number of the buildings affected by tsunami damage to the buildings which are uneffected. And then decide for yourself which disaster displaced thousands and which displaced tens of thousands.

 

[mheslep]

Are you serious? How many people do you think have been displaced because of Fukushima? One hint: The number's close to six digits.

That were not already killed or displaced by the tsunami and earthquake? The death toll alone was over 15,000, all due to the earthquake and tsunami.

 

[clancy688]

Look at my post above. Jesus, people. Use your mind. One look at a map tells you that more than 90% of the people inside the 20km zone were nowhere near the tsunami's "destruction zone".

 

[mheslep]

Look at my post above. Jesus, people. Use your mind. One look at a map tells you that more than 90% of the people inside the 20km zone were nowhere near the tsunami's "destruction zone".

The tsunami was not the only thing that killed and displaced people; the 9.0 earthquake also had some impact.

 

[clancy688]

Now you're beginning to make things up. The death count of the massive 9.0 earthquake didn't exceed 100 people. And if the earthquake would've been bad enough to displace tens of thousands of people in a half sphere of only 20 km, then Japan would've been and would still be on the brink of humanitarian catastrophe.

I don't deny that the tsunami and earthquake must've displaced people. But it's neglectable compared to what the nuclear disaster did. And even IF (and that's an IF the size of at least half the pacific) the earthquake and tsunami together displaced 45'000 people inside this 20km sphere, then there were STILL 45'000 others who were displaced by contamination. To quote NUCENG "Half of a big number is still a big number".

 

[russ_watters]

Clancy, you don't need to look at satellite photos and speculate. Damage figures are public and it can easily be verified that the earthquake and tsunami were much worse by most measures:

Deaths and injuries? Yep.
Property (money)? Yep.
Homelessness? Yep.

The only metric I can think of where the nuclear disaster may prove worse is long term displacement, but that has yet to be determined. The earthquake/tsunami is still in the lead.

 

[mheslep]

Now you're beginning to make things up.

Please quote my passage that you claim is fabricated.

The death count of the massive 9.0 earthquake didn't exceed 100 people.

Do you have a source for that claim? If true it would be unprecedented.

 

[russ_watters]

Clancy, you should at least read the wiki page rather than just making this stuff up: http://en.m.wikipedia.org/wiki/2011_Tōhoku_earthquake_and_tsunami

 

[clancy688]

Clancy, you don't need to look at satellite photos and speculate. Damage figures are public and it can easily be verified that the earthquake and tsunami were much worse by most measures:

Deaths and injuries? Yep.
Property (money)? Yep.
Homelessness? Yep.

I'm not for sure with the money (the nuclear disaster's costs were measured at 250 billion, which's equal to the total earthquake and tsunami damages), but for the rest, yep. You're right.
Still - that's absolutely no effect on our current discussion. All I was talking about (and what I thought YOU were talking about) was the number of people displaced by the tsunami/earthquake and not the nuclear disaster INSIDE the exclusion zone.

I said "Inside the exclusion zone, the disaster displaced a lot more people than the tsunami and earthquake together."
You countered with: "But if you consider Japan as a whole, the tsunami / earthquake displaced WAY MORE people than the nuclear disaster."

Which may be true but certainly isn't the point here... my one and only assertion is that a nuclear disaster displaced tens of thousands of people who wouldn't have had to leave their homes if there would've been no nuclear disaster.

And no you want to counter by telling me that something else displaced more people somewhere else?

Ebola is no big deal. There may've been some deaths here and there. But overall, the rabies killed millions over the years! Did Ebola kill millions? No? See? Rabies is certainly worse! Is that what you're trying to tell me?

The earthquake/tsunami is still in the lead.

As told above, that wasn't the point. The point was that a recent nuclear disaster displaced tens of thousands of people, which's definitely NOT a "good track record" on my watch.

Do you have a source for that claim? If true it would be unprecedented.

Granted, it wasn't 100 shaking deaths. I just looked the number up. 230 is about right. For ALL OF Japan.

@russ_waters:
And you should read my posts. Carefully.

 

[russ_watters]

Ok, I thought that it was possible that you meant that but don't see why that is a useful constraint. I did read your post, but that constraint seems like gamesmanship, so I was giving you the benefit of the doubt.

Your ebola/rabies example doesn't seem to fit. We're not talking about Chernobyl vs every earthquake in history, we're talking about subsets of damage from one event. What our standards do for us is ensure that if there is a natural disaster, damage resulting from an associated nuclear disaster will be less. I consider that a very useful thing to be able to say.

 

[clancy688]

Useful constraint in sense of "If 230 were killed in all of Tohoku's 70'000 square kilometers, how many earthquake-related casualties probably occurred in the 700 square kilometers large exclusion zone which's at least 150 kilometers away from the epicenter?".

 

[russ_watters]

Useful in terms of ranking disasters and prioritizing responses. For example, one might ask:

1. Is it worthwhile to shut down the rest of our nuclear plants?
2. Which will save more lives in the future: focusing on nuclear codes or building codes?
3. Which is worthy of more newspaper coverage?

 

[clancy688]

Those points are certainly valid, but still they change nothing about the one and only thing I stated in this thread and which all of you are p***yfooting around. ;)

My statement: There's been a recent accident which displaced tens of thousands of people. Therefore, proclaiming nuclear plants have a "good track record" falls somehow... "short" of the reality (apart from the small but funny prerequirement that safe nuclear power plants are safe... except for the unsafe ones in places like the Soviet Union, but those obviously don't count...).

 

[russ_watters]

One would have to define what a 'good' track record looks like and how it compares with other track records. Is nuclear's track record 'good' compared to coal power? Compared to oil production? It looks to me like you are confusing "good" with "perfect".

Also, exclusion of Russian disasters is not unique to nuclear power. Airline safety stats, for example, often exclude Russia. They just played by their own set of lax rules that don't apply elsewhere. I live 5mi from a nuclear plant. If I want to weigh my risks associated with it, should I consider Chernobyl?

You still haven't explained why your criteria is useful, btw.

 

[mheslep]

With regard to displacement, I see the wiki states that "129,225 buildings totally collapsed, with a further 254,204 buildings 'half collapsed', and another 691,766 buildings partially damaged. Then there's the widespread and long term outage of services, water, transportation, gas, electric.

 

[Astronuc]

Japan is allowing some of the 80,000 people forced to move following last year's Fukushima nuclear disaster to visit their homes again.

Around 16,000 people who lived close to or just inside the exclusion zone will be able to re-enter the area.

http://www.bbc.co.uk/news/world-asia-17562418

Another substantial part of the evacuation area in Fukushima prefecture has been recategorised, with most of Iitate village subject to conditional returns from tomorrow.

Most of Iitate's approximately 7000 residents will be able to return during daylight hours to homes and businesses without monitoring or protective equipment from 17 July, under changes to control measures announced by the Ministry of Economy, Trade and Industry (METI). This makes possible the resumption of commerce, retail and public services, thereby helping to prepare the areas for full rehabitation. It allows the maintenance and restoration of buildings, roads and other infrastructure, some of which suffered during the earthquake last year.

http://www.world-nuclear-news.org/RS_Iitate_evacuation_relaxed_1607121.html

The mental or physical burden of the forced move from their homes because of the Fukushima accident was the cause of 34 early deaths, said a report from Japan's Reconstruction Agency on 21 August. The figure compares to 1916 people from Fukushima, Iwate and Miyagi prefectures that died during evacuation from areas hit only by the tsunami and the earthquake. The leading causes of the majority of those early deaths were disruption to the smooth operation of hospitals, the exacerbation of pre-existing health problems, and the general 'mental fatigue' from dramatic changes in life situation.

A cross-section of all people that died during their evacuation showed that the vast majority were elderly: only 4% were below 60 years of age, while 67% were over 80. Some 18% of these fatalities came within one week of the natural disasters and nuclear accident; 48% within one month; and 78% within three months.

. . . .

http://www.world-nuclear-news.org/RS_The_health_effects_of_Fukushima_2808121.html

Of course, the discussion has diverged from the OP, which was the impact of solar storms on the world's nuclear power plants. There are 433 operable commercial nuclear plants in the world. Most (of the 50) in Japan are currently shutdown.

Clearly 700 Fukushimas is a gross exaggeration. Apparently the solar storm concern is a hoax.

 

[russ_watters]

Also RE: Chernobyl: failure mode relevance and obselescence are important for gauging safety. Nuclear plants do not fail often enough for a recognizable rate or trend to occur, but by looking at airline safety you can see improvements that render certain failure modes obsolete. It is important to recognize this when gauging safety.

 

[clancy688]

You still haven't explained why your criteria is useful, btw.

ryan and mhsleep argued that a large part of the alleged evacuees of the exclusion zone didn't have to move because of the radiation, but because of earthquake or tsunami damages.
I simply pointed out that while there are certainly people inside the exclusion zone who (also) had to move because of tsunami or earthquake damages, the majority had to leave because of the radiation.

And the number in question (first my guessed 100, then the confirmed 230) was used by me in order to make clear that while the earthquake certainly WAS massive, its shaking absolutely didn't leave the devastation one would normally except out of something this size. Which, in turn, also indicates that there can't be that many people who lost their homes due to the shaking. And if it's unlikely that most of those 90'000 evacuees lost their homes due to shaking or water, then... well, why did they leave then? Which of the three disasters is left?
Example: The Christchurch quake killed 185 people, which's in range of the Tohoku earthquake's shaking deaths. But how many people lost their homes? Several thousand. Applied to Japan that would mean probably something about 10'000 homeless people due to shaking (I'm NOT speaking about the tsunami).
Since those are distributed over all of Tohoku, only a insignificant small number would've lost their homes inside the 20km exclusion zone to shaking. Ergo most of the 90'000 did leave because of the radiation.

 

[QuantumPion]

If there were a cosmic disaster catastrophic enough to cause every nuclear plant to melt down, I can guarantee 90% of the world population would starve to death (from desutruction of industrialized infrastructure required for mass food production) long before any symptoms of radiation-induce cancer arise (not that anyone would have the capability to diagnose said cancer, with the complete destruction of all machinery and electronics and all...)

 

[russ_watters]

And that matters because...?

 

[clancy688]

And that matters because...?

...

Me: "Tens of thousands inside the exclusion zone lost their homes due to the nuclear disaster."
They: "Nope, they lost their homes to the earthquake and tsunami."
Me: "That's not true, because..."

 

[nikkkom]

Utter nonsense. All plant workers entering the RCA are issued programmable digital alarming dosimetry. Stationary rad monitors are located at all steam transfer points to monitor for radiation release and personell safety.

Oh really?

Explain to me how it happened that at one point during Fukushima meltdown, workers went into the plant to open a valve but turned back, because their radiation meters went offscale high, so they were unable to determine whether there were 1, 10, 100 or 10000 rem/h?

Explain to me why Fukushima units had no working emergency lights. Why workers had to work in complete darkness?

 

[clancy688]

Explain to me why Fukushima units had no working emergency lights. Why workers had to work in complete darkness?

Probably another case of "Safe plants are safe, but unsafe ones don't count"... (forgive me if I'm overly sacastic now, but somehow I'm exhausted after this discussion...)

 

[russ_watters]

...

Me: "Tens of thousands inside the exclusion zone lost their homes due to the nuclear disaster."
They: "Nope, they lost their homes to the earthquake and tsunami."
Me: "That's not true, because..."

Then I think this all started with you misreading Ryan's post: he didn't mention the exclusion zone and I think he's good enough at risk analysis to not use that boundary as a constraint. But he'll have to clarify that.

 

[QuantumPion]

Oh really?

Explain to me how it happened that at one point during Fukushima meltdown, workers went into the plant to open a valve but turned back, because their radiation meters went offscale high, so they were unable to determine whether there were 1, 10, 100 or 10000 rem/h?

Explain to me why Fukushima units had no working emergency lights. Why workers had to work in complete darkness?

You are just being silly now. Your original claim was that they did not have adequate dosimeters. Now you are backing off and just complaining that they don't have dosimeters which can read radiation levels far above that which are immediately lethal. They had dosimeters which read "off scale high", indicating very high radiation levels, so they exited. Modern digital dosimeters typically have a range of 0.1 to 1000 R/hour. If the radiation level is greater than 1000 R/hr, you would immediately evacuate. Your complaint is entirely false and invalid.

I highly doubt they had no working emergency lights. You'll have to back that claim up with some evidence.

 

[russ_watters]

I highly doubt they had no working emergency lights. You'll have to back that claim up with some evidence.

Yes, it would be quite odd and impressive if they were "work[ing] in complete darkness"!

 

[Ryan_m_b]

...

Me: "Tens of thousands inside the exclusion zone lost their homes due to the nuclear disaster."
They: "Nope, they lost their homes to the earthquake and tsunami."
Me: "That's not true, because..."

Then I think this all started with you misreading Ryan's post: he didn't mention the exclusion zone and I think he's good enough at risk analysis to not use that boundary as a constraint. But he'll have to clarify that.

You've got it right russ, Clancy as far as I can tell you are misreading my post. You seem to think I have taken a position opposite to yours simply because I asked you to clarify it. In reality I haven't and instead tried to point out aspects of the whole disaster that we have to take into account e.g. the earthquake and tsunami.

 

[nikkkom]

Explain to me how it happened that at one point during Fukushima meltdown, workers went into the plant to open a valve but turned back, because their radiation meters went offscale high, so they were unable to determine whether there were 1, 10, 100 or 10000 rem/h?

You are just being silly now. Your original claim was that they did not have adequate dosimeters. Now you are backing off and just complaining that they don't have dosimeters which can read radiation levels far above that which are immediately lethal.

What? 10 rem/h is immediately lethal? Since when? Even 100 rem/h, while quite high, is not immediately lethal.

They had dosimeters which read "off scale high", indicating very high radiation levels, so they exited.

Wrong. Their dosimeters had insufficient range even for initial, relatively small increases in radiation before complete meltdown.

In an unanticipated accident like this, a worker may decide that to save thousands or maybe even millions of people, he is willing to voluntarily go into 10 rem/h or even 200 rem/h field for ten minutes to open a valve or something.

But in order to be able to make such judgement, worker needs to know whether it's 10 or 5000 rem/h there.

In Chernobyl they had this problem with dosimeter ranges. I was 100% sure that nuclear industry all over the world pored over Chernobyl information to not repeat their mistakes.

To my horror and disbelief, while reading about Fukushima disaster I realized I was wrong: nuclear industry did not fix even an obvious problem like this. Or the emergency lights...

 

[nikkkom]

I highly doubt they had no working emergency lights. You'll have to back that claim up with some evidence.

Photo from March 11. Control room is completely dark. Workers are forced to use handheld lights:

http://cdn2-b.examiner.com/sites/default/files/styles/image_content_width/hash/b6/31/b631e76b3198de7cb355b157402e905c.jpg

http://www.examiner.com/article/fukushima-timeline-one-year-after-march-11th-12th

"Batteries were being brought into the control room to attempt to re-establish level indications and other instruments."

"At the same time, valve by valve, operators worked through the pitch black buildings to align the fire protection system to allow for injection of water into the core."

"Unit 2 shares a control room with Unit 1 and suffered the same loss of lighting and power to control and indications that Unit 1 did. "

 

[nikkkom]

And there is more:

"As cooling was lost, pressure spiked inside the reactor, and the safety release valves (SRVs), normally used to quickly depressurize the reactor in an emergency, were inoperable due to the loss of battery power. By 04:15 the fuel was no longer covered by water and began to melt, releasing hydrogen in the zirconium-water-heat reaction. Workers rushed into the parking lot to scavenge batteries from cars in order to get enough power to use one of the SRVs."

Got it? *Safety valves which require DC to operate*! How dumb is that? It would be interesting to chat with a genius who designed that system...

 

[nikkkom]

From INPO report:

http://www.nei.org/filefolder/11_005_Special_Report_on_Fukushima_Daiichi_MASTER_11_08_11_1.pdf

"With no core cooling and extensive damage to the site, workers began to investigate methods for venting containment without power
and reviewing methods for injecting water into the reactor using the fire protection system or fire engines."

Nice. No one bothered to plan for it beforehand. Let scared and stressed workers devise the plan while they listen to their dosimeter beeps.

"In complete darkness, operators began to align the alternative water injection valves from the fire protection system to the core spray system by manually opening the valves in the reactor building."

Yet another confirmation that emergency lighting was dead too.

"At 1825, the operator closed the MO-3A valve to remove the system from service. The reason for this action has not been determined. As a result, there was no cooling method aligned to remove decay heat from the reactor."

I can tell you probable reasons: mistake under stress, fear that this half of IC is damaged, fear that rapid cooling will damage the reactor.

I can somewhat blame the operator, but in all fairness, he wasn't supposed to be in a situation where he operates mostly-dead control panel with nothing but stabs in the dark, with neither instrument data nor emergency instructions on hand.

 

[QuantumPion]

What? 10 rem/h is immediately lethal? Since when? Even 100 rem/h, while quite high, is not immediately lethal.
Wrong. Their dosimeters had insufficient range even for initial, relatively small increases in radiation before complete meltdown.

In an unanticipated accident like this, a worker may decide that to save thousands or maybe even millions of people, he is willing to voluntarily go into 10 rem/h or even 200 rem/h field for ten minutes to open a valve or something.

But in order to be able to make such judgement, worker needs to know whether it's 10 or 5000 rem/h there.

There is no situation where a plant operator would have to decide whether to enter an area to save equipment which would save "millions of people". This is complete fantasy of your own making. I think you've watched Atomic Twister one too many times. And as I have mentioned previously, I have never heard of any lack of dosimetry issues at Fukushima. You'll have to back up your claim with some evidence.

In Chernobyl they had this problem with dosimeter ranges. I was 100% sure that nuclear industry all over the world pored over Chernobyl information to not repeat their mistakes.

To my horror and disbelief, while reading about Fukushima disaster I realized I was wrong: nuclear industry did not fix even an obvious problem like this. Or the emergency lights...

At Chernobyl, the problem they had with radiation detectors was because of the lack of experience and training of the operators. They assumed the radiation was not as high as it was because their geiger counters, used for detecting low-level contamination, were maxed out. They had access to high level geiger counters but did not use them initially, before they knew the scope of the accident.

And there is more:Got it? *Safety valves which require DC to operate*! How dumb is that? It would be interesting to chat with a genius who designed that system...

Um... do you even know what DC power is? How valves work? How batteries work? What on Earth could possibly lead you to think that emergency backup power is "dumb"?

And in your own following post, you quote statements saying they had emergency lighting, while simultaneously claiming they didn't have emergency lighting. Can't really comment on that logic.

All of your statements are evidence of a complete non-understanding and refusal to educate yourself of the facts. You have simply taken scarey sounding headlines, written by journalists and anti-nuclear activists, and accepted them as factual.

 

[zapperzero]

You are just being silly now. Your original claim was that they did not have adequate dosimeters.

You are becoming quite annoying. The lack of dosimeters is well documented, at one point TEPCO even asked NISA if it's okay to use just one dosimeter per "work crew" (whatever that means) and NISA said "yeah whatever" for some reason. Dosimeters which did exist went offscale on multiple occasions, as documented in firefighters and workers' testimonies, but also in the official records of TEPCO, where this is given as a reason for various actions and inactions.

EDIT:

40% of workers had no dosimeter at nuke plant soon after disaster

http://ajw.asahi.com/article/0311disaster/fukushima/AJ201209040060

and here is your "emergency lighting"
http://www.neimagazine.com/graphic.asp?sc=2061344&seq=3

As[/PLAIN] all AC and DC power sources of Units 1 and 2 were lost, the lights gradually went
out and the alarms stopped sounding in the Units 1 & 2 main control room. Only the
emergency lights remained on in the Unit 1 block of the room while the lights in the Unit 2
block went out completely.
[snip]
At approximately 15:38 that day, the only
interior lights in the Units 3 & 4 main control room were the emergency lights due to the
total loss of AC power supplies. LED flashlights that were distributed to the Units 3 & 4
main control room for the field inspection of the facilities in February 2011 were used to
light the room.
[snip]
From approximately 02:00 until approximately 03:00 on March 12, they drove the
fire engine to the T/B of Unit 1 and found that the shutter at the entrance to the building
had been opened by the force of the seismic waves and several cars had been swept out
of the building and piled up on the ground. Amid such chaos, they used searchlights of
the fire engines to look for the embedded water discharge port.

Would you like some crow with that pie?

 

[berkeman]

Thread closed for Moderation...